TOP END KIT VERTEX PISTON, TOP GASKET SET, SMALL END BEARING YAMAHA YZ250 02-21 YZ250X 16-21 66.36MM
Attn: Click and Collect Customers
Some of our stock is in bulk storage. Please contact us via email or chat and let us know the items you require. We will pick and confirm that they are reserved for you before you process payment.
Vertex pistons are manufactured in Italy and are the premier brand of replacement pistons around the world. Their pistons are trusted by OEMs such as KTM, Husqvarna, Beta, and Gas Gas. The company offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersports use. Vertex collaborates with factory race teams on piston design, which allows them to build on their outstanding dedication to quality while continuing to bring their products to market at an affordable price.
Vertex piston kits include the piston, rings, wrist pin and circlips. The pistons are heat-treated with a T-6 hardening and tempering cycle. Also, a molybdenum disulphide skirt coating is used for reducing wear and improving the break-in phase of each piston.
Forged Pistons for 4 Stroke
Four-stroke engines have much higher cylinder pressures when compared to two-strokes and are generally manufactured from forgings. To handle the internal pressures of a four-stroke engine, Vertex?s four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profi les and compression ratios, offered in A, B, C and D sizes, to maximize power and performance while reducing blow-by and oil consumption.
Cast Piston for 2 Stroke
Because of a cast piston?s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with
18% silicon content. Silicon is important because:
- It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.
- Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.
Top End Kit Vertex Piston Kit, Top Gasket Set, Small end Bearing Yamaha YZ250 WR250 02-21 YZ250X 16-21 66.36mm
We've kept our Shipping Policy as simple as possible:
- Non-Rural: $10 North Island and $15 South Island
- Rural: $10 additional to North and South Island
All orders are sent as tracked deliveries and you will be provided your tracking number when your order is dispatched. Please allow 3 - 5 days for delivery and up to 7 working days for rural orders.
Any inquiries about your order, please contact us.
Please note;
- We cannot ship to PO Box addresses.
- We do not ship to international addresses.
Pick Up is available in store
You can order your products online and pick them up from our store at 72 Barrys Road, Takapuna, Auckland.
Some items are stored at our warehouse, so we will notify you when your order is ready to collect.
